... :dual band900/1800MHz 3.Interface:DB 9 pin mc39i modem ,SMS/MMS/GPRS function ,advanced performance Specification : Cinterion GSM/GPRS ... cancellation PCM audio, Emergency calls SMS: Text and PDU mode, Point to point (MO/MT), Cell broadcast DATA: non transparent, CSD up ... to 14.4kbps, USSD, Interfaces: UART, RF connector, 40 pin system connector, SIM ...